Original Round Catch Cover fish house holes are the most popular choice for new fish house construction. They keep snow, dirt, and road salt out of your fish house when traveling over the roughest roads. The double-point handle folds down flush and is easy to grab with gloved hands and doesn't twist out. Original Catch Covers are injection molded out of the proper cold weather plastics that won't crack or warp, no matter how cold it gets. Original Catch Covers give you a professional, finished look, and the flange extends down to protect in-floor insulation. These covers are designed to be driven over with an ATV and snapped back into place by stepping on them. Rough floor cut 12 3/4" diameter. Installation is simple. Trace the catch cover onto your floor using a sharpie or paint pen. Cut the hole with a jigsaw or reciprocating saw and install screws in the flange to secure it in the floor. We recommend tapered head stainless steel wood screws, but drywall screws are fine. Use the Catch Cover sleeves for a perfect fit system guaranteed to keep the elements out of your shack and help keep your holes ice free. All Catch Cover products are constructed from high quality injection molded plastic and feature a limited lifetime guarantee, you break it we replace it. No ice shack should be without the absolute best system on the planet.